imx6q spdif issue

Now I want to recive hdmi audio input data via spdif interface , and i add the spdif device in device tree and also can see the imx-spdif in alsa devices list in log, but now we encounter the issue that we cannot get any data from the interface , I use the command that arecord -D plughw:1,0 test.wav -v , and i have attach the images which contain the log , pls help check thanks